7355334221 has 2 divisors, whose sum is σ = 7355334222. Its totient is φ = 7355334220.

The previous prime is 7355334211. The next prime is 7355334241. The reversal of 7355334221 is 1224335537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4013222500 + 3342111721 = 63350^2 + 57811^2 .

It is a cyclic number.

It is not a de Polignac number, because 7355334221 - 2⁶ = 7355334157 is a prime.

It is a super-2 number, since 2×7355334221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7355334211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3677667110 + 3677667111.

It is an arithmetic number, because the mean of its divisors is an integer number (3677667111).

Almost surely, 2^7355334221 is an apocalyptic number.

It is an amenable number.

7355334221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7355334221 is an equidigital number, since it uses as much as digits as its factorization.

7355334221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 35.

The square root of 7355334221 is about 85763.2451636480. The cubic root of 7355334221 is about 1944.7665252846.

Adding to 7355334221 its reverse (1224335537), we get a palindrome (8579669758).

The spelling of 7355334221 in words is "seven billion, three hundred fifty-five million, three hundred thirty-four thousand, two hundred twenty-one".